Fix incorrect svn properties, for example .png should not have svn:keywords set, that could in worst case result in corruption. While we are updating properties anyway, clean up incorrect (but mostly harmless) svn:mime-type, svn:executable and so on.

monster/*: Rebalance monsters. In many cases, hp, ac, exp, and level
were adjusted. This also incluedes the gods avatars and some spells that
create monster like objects.
player/race/*.arc: Give all playable races a 30 sp/hp/grace boost, so
starting values are higher, making things more playable.
MSW 2008-01-13